Culture pond sewage suction device

Abstract

The invention relates to a culture pond sewage suction device.A support is fixed to a floating board.A rotation joint is communicated with a mud conveying pipe.The mud conveying pipe extends to a shoreside mud pit.The rotating joint is communicated with a first hose.The first hose is connected with a discharging outlet of a submerged pump.A suction inlet of the submerged pump is communicated with a second hose.The second hose is communicated with a sucker device.A header pipe of the sucker device is communicated with the side wall of a sucker pipe through two branched pipes.A plurality of kidney-shaped holes are formed in the bottom of the sucker pipe in the length direction.The two sides of the sucker pipe are hinged to pressure reduction plates through first rotating shafts respectively.The half-height of the pressure reduction plates is the design sewage suction distance between the sucker pipe and the bottom of the pond.The two ends of the sucker pipe are hinged to the lower ends of guide rods respectively.The upper ends of the guide rod stretch into sleeves.The guide rods and the support are hinged through second rotating shafts.When the pond sewage suction device moves and sucks sewage in the pond, the pressure reduction plates make tight contact with the bottom of the pond all the time, and the design sewage suction distance between the sucker pipe and the bottom of the pond is kept; along with changes of the depth and gradient of the pond, the guide rods freely stretch and retract in the sleeves, and the first rotating shafts and the second rotating shafts are freely rotated and adjusted.

Description

technical field [0001] The invention relates to a sewage suction device for aquaculture ponds, which belongs to the technical field of water pollution control and treatment of pond aquaculture ecosystems. Background technique [0002] Studies have found that, except for 20%-30% of the nutrients such as nitrogen and phosphorus input into the water body are absorbed and utilized by aquatic organisms, the rest all enter the water body environment, and about 60-70% of them are deposited in the mud bottom. Bottom mud plays an important role in the pond aquaculture ecosystem. Because the sludge contains certain nutrients, it is directly beneficial to the growth and reproduction of microalgae and microorganisms. An appropriate amount of sludge has the effect of preserving fertilizer and buffering water quality. However, with the prolongation of the breeding cycle, a large amount of organic waste such as residual bait that has not been ingested and excreted feces is deposited in the...

AI Technical Summary

Problems solved by technology

[0008] The technical problems to be solved in the present invention are: the existing pond sewage suction device has a bulky and complex structure and insufficient sewage suction capacity; the water pump is fixed above the floating body, the entire structure is large in volume, inconvenient to disassemble and maintain, and special packaging materials are required for packing and transportation ; The depth of each position of the pond is different, and the depth of the sewage suction device diving into the water cannot be adjusted, and the sewage suction effect is unstable

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